On new Genera and Species of Hymenoptera. 495 



LXVII. — Descriptions of new Genera and Species of 



Hymenoptera. By P. CAMERON. 



[Continued from p. 419.] 



The Males of Icaria. 



Bingham, in his ' Hymenoptera of India/ does not describe 

 the male sex of any species of Icaria. Saussure, in his 

 1 Etude sur la Fain. d. Vespides,' only describes the male of 

 one species, from which it would appear that the males must 

 be rarer than the females or workers. 



The male of I.ferruginea is of the same size as the female, 

 and agrees with it in general coloration. The underside of 

 the scape, the eye-incision, the face, clypeus, and mandibles 

 are pale yellow ; the clypeus is strongly punctured, except at 

 the apex ; the clypeus is broader than long, is slightly convex, 

 and is roundly and broadly incised in the middle, the sides 

 being oblique ; the fifth and following joints of the antennas 

 are roundly incised, the incision becoming deeper towards the 

 apex; the apical joint is deeply incised, almost hook-shaped, 

 somewhat as in Eumenes. 



The male of variegata has the middle of the front, the eye- 

 incision, the clypeus, and mandibles lemon-yellow; the clypeus 

 is smooth, the incision on its top is somewhat horseshoe- 

 shaped, deep and black ; the lateral keel does not reach to it ; 

 the flagellum becomes gradually thicker to the penultimate 

 joint, the joints are not incised, the last is about three times 

 longer than the preceding and is broadly curved on the lower 

 side ; on its inner side beneath it is broadly hollowed, the 

 hollow bordered by a keel, which is obliquely curved. The 

 pro- and mesopleuras are for the greater part yellow, streaked 

 with rufous; the mesosternum is also yellow ; the mesonotum 

 blackish ; the scutellum, postscutellum, and metanotum are 

 also yellow ; the yellow band on the apex is one fourth of the 

 length of the segment and has a black band at its base; the 

 other segments are for the greater part yellowish ; the petiole 

 is shorter than the second segment by about one fourth, and 

 it is distinctly longer than it is in the £ . In length it is 

 12 millim. 



I am not certain, but this may be the male of artifex, with 

 which, in some points, it agrees better than it does with the 

 female of variegata. The petiole appears to be intermediate 

 between the two, being larger than in variegata, but not so 

 long compared with the second segment as in artifex. The last 

 joint of the antennas is longer compared with the preceding 

 than it is in ferrnginea and is differently formed ; the joints 

 preceding it, too, are simple, not incised, as in ferruginea. 



* 33* 



